JPH09250691A - Thermal reaction type steam trap - Google Patents

Thermal reaction type steam trap

Info

Publication number
JPH09250691A
JPH09250691A JP8741396A JP8741396A JPH09250691A JP H09250691 A JPH09250691 A JP H09250691A JP 8741396 A JP8741396 A JP 8741396A JP 8741396 A JP8741396 A JP 8741396A JP H09250691 A JPH09250691 A JP H09250691A
Authority
JP
Japan
Prior art keywords
valve
diaphragm
wall member
temperature control
control element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8741396A
Other languages
Japanese (ja)
Inventor
Tadashi Koike
正 小池
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TLV Co Ltd
Original Assignee
TLV Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TLV Co Ltd filed Critical TLV Co Ltd
Priority to JP8741396A priority Critical patent/JPH09250691A/en
Publication of JPH09250691A publication Critical patent/JPH09250691A/en
Pending legal-status Critical Current

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  • Temperature-Responsive Valves (AREA)
  • Check Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a thermal reaction type steal trap which carries out an intermittent opening and closing valve operation, as well as can reduce the number of part items. SOLUTION: An inlet 4, a valve chamber 3, and an outlet 5 are formed to valve casings 1 and 2. A temperature control element 9 made by fixing the outer peripheral edge of a diaphragm 14 between an upper wall member 12 and the lower wall member 17, sealing an expansion medium 22 between the upper wall member and the diaphragm 14, and a temperature control element 9 mounting a valve member 16 to the diaphragm 14, is installed in the valve camber 3. A gasket 26 to seal between the inner peripheral wall 24 of the valve casings and the outer periphery of the temperature control element 9 is provided. A fluid passing hole 20 is formed to the temperature control element 9 by penetrating the upper wall member, the diaphragm, and the valve member. Leading-out passages 8 are formed to the lower wall member. A seal surface 29 to block the fluid passing hole 20 of the valve member 16 in the seating condition of the valve member 16 to the lower wall member 17 is formed to the lower wall member.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、各種蒸気使用機器
や蒸気配管で発生する復水を自動的に排出するスチ―ム
トラップに関し、特に、蒸気と復水で加熱冷却されその
温度に応じて膨脹収縮する媒体を含む温度制御機素を用
いて、所望温度以下の復水を系外へ排出する熱応動式ス
チ―ムトラップに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam trap for automatically discharging condensate generated in various steam-using devices and steam pipes, and more particularly, it is heated and cooled by steam and condensate and expands according to its temperature. The present invention relates to a heat-actuated steam trap that discharges condensed water below a desired temperature to the outside of a system by using a temperature control element containing a contracting medium.

【0002】[0002]

【従来の技術】熱応動式スチ―ムトラップの基本的構成
は、例えば、特開平8−28787号公報から公知であ
る。当該公報から理解されるように、入口と弁室と出口
を形成した弁ケ―シングと、弁室と出口を連通する導出
路を形成した弁座部材と、上下二つの壁部材の間にダイ
ヤフラムの外周縁を固着して上壁部材とダイヤフラムの
間に膨脹媒体を封入しダイヤフラムに弁部材を取り付け
た温度制御機素を具備し、弁座部材を弁室と出口の間に
取り付け、弁部材を弁座部材に対面させて温度制御機素
を弁室に取り付け、弁ケ―シングの内周壁と温度制御機
素の外周との間に流体通過用の隙間を設け、弁部材の弁
座部材への着座時に弁座部材の導出路を閉止するシ―ル
面を弁部材に形成したものである。
2. Description of the Related Art The basic structure of a heat-actuated steam trap is known, for example, from Japanese Patent Application Laid-Open No. 8-287787. As understood from the publication, a valve casing having an inlet, a valve chamber and an outlet, a valve seat member having a lead-out passage communicating the valve chamber and the outlet, and a diaphragm between two upper and lower wall members. The valve member is attached between the valve chamber and the outlet by attaching the valve member to the diaphragm by sealing the expansion medium between the upper wall member and the diaphragm by fixing the outer peripheral edge of the valve member. The valve seat member with the temperature control element facing the valve seat member, and a fluid passage gap is provided between the inner wall of the valve casing and the outer circumference of the temperature control element. The valve member has a seal surface for closing the lead-out path of the valve seat member when seated on the valve member.

【0003】弁室内の温度が上昇すると膨脹媒体が膨脹
し、ダイヤフラムを介して弁部材が弁座部材に着座して
導出路を閉止する。これによって、蒸気の漏出を防止す
る。弁室内の温度が低下すると膨脹媒体が収縮し、弁部
材が弁座部材から離座して導出路を開口する。これによ
って、復水を系外へ排出する。
When the temperature in the valve chamber rises, the expansion medium expands, and the valve member is seated on the valve seat member via the diaphragm to close the outlet passage. This prevents steam from leaking out. When the temperature in the valve chamber decreases, the expansion medium contracts, and the valve member separates from the valve seat member to open the outlet passage. This discharges the condensate out of the system.

【0004】[0004]

【発明が解決しようとする課題】上記従来のものでは、
導出路を温度制御機素とは別の弁座部材に形成しなけれ
ばならず、部品点数が多くなるという問題点があった。
また上記従来のような様式の熱応動式スチ―ムトラップ
にあっては、膨脹媒体の膨脹収縮温度を境にして小刻み
に開閉弁作動を繰り返すので、復水がたらたらと排出さ
れ、蒸気漏れと見間違うことがあり望ましくなかった。
SUMMARY OF THE INVENTION In the above prior art,
There has been a problem that the lead-out path has to be formed in a valve seat member different from the temperature control element, resulting in an increase in the number of parts.
Further, in the above-described conventional heat-actuated steam trap, since the opening / closing valve operation is repeated in small increments with the expansion / contraction temperature of the expansion medium as the boundary, the condensed water is discharged as if it were a vapor leak. There was a mistake and it was not desirable.

【0005】従って、本発明の技術的課題は、部品点数
を減少すると共に間欠的な開閉弁作動を行う熱応動式ス
チ―ムトラップを提供することである。
Therefore, a technical object of the present invention is to provide a heat-actuated steam trap which reduces the number of parts and performs an intermittent opening / closing valve operation.

【0006】[0006]

【課題を解決するための手段】上記の技術的課題を解決
するために講じた本発明の技術的手段は、弁ケ―シング
に入口と弁室と出口を形成し、上下二つの壁部材の間に
ダイヤフラムの外周縁を固着して上壁部材とダイヤフラ
ムの間に膨脹媒体を封入しダイヤフラムに弁部材を取り
付けた温度制御機素を弁室内に取り付け、弁ケ―シング
の内周壁と温度制御機素の外周との間を密封するシ―ル
部材を設け、温度制御機素に上壁部材とダイヤフラムと
弁部材を貫通して流体通過孔を形成し、下壁部材に導出
路を形成し、弁部材の下壁部材への着座時に弁部材の流
体通過孔を閉止するシ―ル面を下壁部材に形成した熱応
動式スチ―ムトラップにある。
Means for Solving the Problems The technical means of the present invention taken to solve the above technical problems is to form an inlet, a valve chamber and an outlet in a valve casing, and to provide two upper and lower wall members. The outer peripheral edge of the diaphragm is fixed in between, the expansion medium is enclosed between the upper wall member and the diaphragm, and the temperature control element with the valve member attached to the diaphragm is installed in the valve chamber to control the inner wall of the valve casing and the temperature control. A seal member is provided to seal the outer periphery of the element, a fluid passage hole is formed in the temperature control element through the upper wall member, the diaphragm, and the valve member, and an outlet path is formed in the lower wall member. There is a heat-actuated steam trap in which a seal surface that closes a fluid passage hole of the valve member when seated on the lower wall member of the valve member is formed on the lower wall member.

【0007】[0007]

【作用】上記の技術的手段の作用は下記の通りである。
弁室内温度の上昇によって膨脹媒体が膨脹すると、ダイ
ヤフラムを介して弁部材が下壁部材に着座し、下壁部材
のシ―ル面が弁部材の流体通過孔を閉止する。弁ケ―シ
ングの内周壁と温度制御機素の外周との間はシ―ル部材
によって密封されており、且つ流体通過孔が閉止される
ことによって、弁室内が温度制御機素を挟んで入口側と
出口側に隔てられる。入口側から隔離され出口側に連通
したダイヤフラムと下壁部材との間の空間は、圧力が出
口側圧力まで低下するので、ダイヤフラムを開弁方向に
変位せしめる力が低下する。これにより、弁室内温度の
低下によって膨脹媒体が収縮するときにダイヤフラムが
素早く変位し難くなり、弁室内温度がさらに低下してか
らダイヤフラムが変位して弁部材が下壁部材から離座
し、下壁部材のシ―ル面が弁部材の流体通過孔を開口す
ることとなる。これによって間欠的な開閉弁動作を行う
ことが可能となる。また導出路を温度制御機素の下壁部
材に形成したものであるので、導出路を形成するための
弁座部材が不要になる。これによって部品点数を減少す
ることが可能となる。
The operation of the above technical means is as follows.
When the expansion medium expands due to the rise in the temperature in the valve chamber, the valve member is seated on the lower wall member via the diaphragm, and the seal surface of the lower wall member closes the fluid passage hole of the valve member. The inner wall of the valve casing and the outer periphery of the temperature control element are sealed by a seal member, and the fluid passage hole is closed, so that the temperature control element is sandwiched between the valve chamber and the inlet. Side and exit side. The pressure in the space between the diaphragm and the lower wall member, which is isolated from the inlet side and communicates with the outlet side, decreases to the pressure on the outlet side, so the force that displaces the diaphragm in the valve opening direction decreases. This makes it difficult for the diaphragm to quickly displace when the expansion medium contracts due to the decrease in the temperature in the valve chamber, and after the temperature in the valve chamber further decreases, the diaphragm displaces and the valve member separates from the lower wall member. The seal surface of the wall member opens the fluid passage hole of the valve member. This makes it possible to perform an intermittent on-off valve operation. Further, since the outlet passage is formed in the lower wall member of the temperature control element, a valve seat member for forming the outlet passage is unnecessary. This makes it possible to reduce the number of parts.

【0008】[0008]

【実施例】上記の技術的手段の具体例を示す実施例を説
明する(図1参照)。図1において、上ケ―シング1と
下ケ―シング2とをねじ結合して、内部に弁室3を有す
る弁ケ―シングを形成する。上ケ―シング1には弁室3
に連通する入口4を形成し、下ケ―シング2には弁室3
から連通する出口5を形成する。
An embodiment showing a specific example of the above technical means will be described (see FIG. 1). In FIG. 1, the upper casing 1 and the lower casing 2 are screwed together to form a valve casing having a valve chamber 3 therein. The upper casing 1 has a valve chamber 3
An inlet 4 communicating with the lower casing 2 is formed in the lower casing 2.
Forming an outlet 5 communicating with

【0009】弁室3内に、温度制御機素9を配置する。
温度制御機素9は、中央開口10と注入口11を形成し
た上壁部材12と、中央開口13を形成したダイヤフラ
ム14と、中央開口15を形成した弁部材16と、導出
路8を開けた下壁部材17と、上壁部材12とダイヤフ
ラム14の間に封入した膨脹媒体22とで構成する。
A temperature control element 9 is arranged in the valve chamber 3.
The temperature control element 9 opened the upper wall member 12 having the central opening 10 and the inlet 11, the diaphragm 14 having the central opening 13, the valve member 16 having the central opening 15, and the outlet passage 8. It comprises a lower wall member 17 and an expansion medium 22 enclosed between the upper wall member 12 and the diaphragm 14.

【0010】ダイヤフラム14と弁部材16を夫々の中
央開口13,15を並べて溶接(参照番号18)する。
また上壁部材12の中央開口10の縁とダイヤフラム1
4の中央開口13の縁を溶接(参照番号19)し、中央
開口10,13,15によって上壁部材12とダイヤフ
ラム14と弁部材16を貫通する流体通過孔20を形成
する。上壁部材12とダイヤフラム14と下壁部材17
の夫々の外周縁を溶接(参照番号21)する。上壁部材
12とダイヤフラム14との間の密閉空間に注入口11
から膨脹媒体22を注入し、栓部材23で塞ぐ。膨脹媒
体22は、水、水より沸点の低い液体、或いはそれらの
混合物で形成する。
The diaphragm 14 and the valve member 16 are welded (reference numeral 18) with the respective central openings 13 and 15 arranged side by side.
The edge of the central opening 10 of the upper wall member 12 and the diaphragm 1
The edge of the central opening 13 of 4 is welded (reference numeral 19), and the central openings 10, 13, 15 form a fluid passage hole 20 passing through the upper wall member 12, the diaphragm 14, and the valve member 16. Upper wall member 12, diaphragm 14, and lower wall member 17
Are welded (reference numeral 21). Injection port 11 is provided in a closed space between upper wall member 12 and diaphragm 14.
The expansion medium 22 is injected from the container, and the plug member 23 is closed. The expansion medium 22 is formed of water, a liquid having a boiling point lower than that of water, or a mixture thereof.

【0011】温度制御機素9は、下ケ―シング2の内周
壁24に形成した段部25にシ―ル手段としてのガスケ
ット26を介して載せ、スナップリング27で保持す
る。ガスケット26によって下ケ―シング2の内周壁2
4と温度制御機素9の外周との間を密封する。下壁部材
17の上面に弁部材16が着座したときに流体通過孔2
0を閉止するシ―ル面29を形成する。
The temperature control element 9 is mounted on a step portion 25 formed on the inner peripheral wall 24 of the lower casing 2 via a gasket 26 as a sealing means and held by a snap ring 27. Inner peripheral wall 2 of lower casing 2 by gasket 26
4 and the outer periphery of the temperature control element 9 are sealed. When the valve member 16 is seated on the upper surface of the lower wall member 17, the fluid passage hole 2
A seal surface 29 for closing 0 is formed.

【0012】弁室3内の温度が上昇すると膨脹媒体22
が膨脹する。膨脹媒体22の膨脹によってダイヤフラム
14が下方に変位し、弁部材16が下壁部材17に着座
する。弁部材16が下壁部材7に着座すると、下壁部材
17のシ―ル面29が弁部材16の流体通過孔20を閉
止する。これによって蒸気の漏出を防止する。流体通過
孔20が閉止されると、下ケ―シング2の内周壁24と
温度制御機素9の外周との間はガスケット26によって
密封されているので、弁室3内が温度制御機素9を挟ん
で入口4側と出口5側に隔てられる。弁室3内の温度が
低下してくると、膨脹媒体22が収縮してダイヤフラム
14が上方に変位するのであるが、ダイヤフラム14と
下壁部材17との間の空間の圧力が出口5側圧力まで低
下しているので、ダイヤフラム14を上方に変位せしめ
る力が弱く、弁室3内温度がさらに低下してからダイヤ
フラム14が上方に変位して弁部材16が下壁部材17
から離座し、下壁部材17のシ―ル面29が弁部材16
の流体通過孔20を開口する。これによって復水を出口
5から排出する。
When the temperature in the valve chamber 3 rises, the expansion medium 22
Expands. The expansion of the expansion medium 22 causes the diaphragm 14 to be displaced downward, so that the valve member 16 is seated on the lower wall member 17. When the valve member 16 is seated on the lower wall member 7, the seal surface 29 of the lower wall member 17 closes the fluid passage hole 20 of the valve member 16. This prevents vapor leakage. When the fluid passage hole 20 is closed, the space between the inner peripheral wall 24 of the lower casing 2 and the outer periphery of the temperature control element 9 is sealed by the gasket 26, so that the inside of the valve chamber 3 is closed. It is divided into an inlet 4 side and an outlet 5 side with a pinch in between. When the temperature in the valve chamber 3 decreases, the expansion medium 22 contracts and the diaphragm 14 is displaced upward. However, the pressure in the space between the diaphragm 14 and the lower wall member 17 is the pressure on the outlet 5 side. Since the diaphragm 14 is lowered to a lower level, the force for displacing the diaphragm 14 upward is weak, and after the temperature inside the valve chamber 3 further decreases, the diaphragm 14 is displaced upward and the valve member 16 is moved downward.
And the seal surface 29 of the lower wall member 17 is separated from the valve member 16
The fluid passage hole 20 is opened. As a result, the condensate is discharged from the outlet 5.

【0013】[0013]

【発明の効果】本発明は下記の特有の効果を生じる。上
記のように本発明による熱応動式スチ―ムトラップは、
温度制御機素の下壁部材に導出路を形成することによ
り、部品点数を減少することができる。また間欠的な開
閉弁作動を行わせることにより復水排出時に蒸気漏れと
見間違うことがなくなる。
The present invention has the following specific effects. As described above, the heat-actuated steam trap according to the present invention is
By forming the lead-out path in the lower wall member of the temperature control element, the number of parts can be reduced. In addition, by performing the intermittent on-off valve operation, it is not mistaken for a steam leak at the time of condensate discharge.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の熱応動式スチ―ムトラップの実施例の
断面図
FIG. 1 is a sectional view of an embodiment of a heat-actuated steam trap according to the present invention.

【符号の説明】[Explanation of symbols]

1 上ケ―シング 2 下ケ―シング 3 弁室 4 入口 5 出口 8 導出路 9 温度制御機素 12 壁部材 14 ダイヤフラム 16 弁部材 17 下壁部材 20 流体通過孔 22 膨脹媒体 24 下ケ―シングの内周壁 26 ガスケット 29 下壁部材のシ―ル面 1 Upper casing 2 Lower casing 3 Valve chamber 4 Inlet 5 Outlet 8 Outlet passage 9 Temperature control element 12 Wall member 14 Diaphragm 16 Valve member 17 Lower wall member 20 Fluid passage hole 22 Expansion medium 24 Lower casing Inner peripheral wall 26 Gasket 29 Sealing surface of lower wall member

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 弁ケ―シングに入口と弁室と出口を形成
し、上下二つの壁部材の間にダイヤフラムの外周縁を固
着して上壁部材とダイヤフラムの間に膨脹媒体を封入し
ダイヤフラムに弁部材を取り付けた温度制御機素を弁室
内に取り付け、弁ケ―シングの内周壁と温度制御機素の
外周との間を密封するシ―ル部材を設け、温度制御機素
に上壁部材とダイヤフラムと弁部材を貫通して流体通過
孔を形成し、下壁部材に導出路を形成し、弁部材の下壁
部材への着座時に弁部材の流体通過孔を閉止するシ―ル
面を下壁部材に形成したことを特徴とする熱応動式スチ
―ムトラップ。
1. A diaphragm in which an inlet, a valve chamber and an outlet are formed in a valve casing, an outer peripheral edge of a diaphragm is fixed between upper and lower two wall members, and an expansion medium is enclosed between the upper wall member and the diaphragm. A temperature control element with a valve member attached to it is installed in the valve chamber, and a seal member is provided to seal between the inner peripheral wall of the valve casing and the outer periphery of the temperature control element, and the temperature control element has an upper wall. A seal surface that forms a fluid passage hole through the member, diaphragm, and valve member, forms a lead-out path in the lower wall member, and closes the fluid passage hole of the valve member when seated on the lower wall member of the valve member. A heat-actuated steam trap characterized in that the lower wall member is formed with.
JP8741396A 1996-03-15 1996-03-15 Thermal reaction type steam trap Pending JPH09250691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8741396A JPH09250691A (en) 1996-03-15 1996-03-15 Thermal reaction type steam trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8741396A JPH09250691A (en) 1996-03-15 1996-03-15 Thermal reaction type steam trap

Publications (1)

Publication Number Publication Date
JPH09250691A true JPH09250691A (en) 1997-09-22

Family

ID=13914199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8741396A Pending JPH09250691A (en) 1996-03-15 1996-03-15 Thermal reaction type steam trap

Country Status (1)

Country Link
JP (1) JPH09250691A (en)

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